package cn.hjh.Service.aop;

import org.apache.log4j.Logger;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;

import java.util.Arrays;

/**
 * 通过注解实现环绕增强
 */
@Aspect
public class AroundLogger {

    private static final Logger log = Logger.getLogger(AroundLogger.class);

    @Around("execution(* cn.hjh.Service.UserService.*(..))")
    public Object aroundLogger(ProceedingJoinPoint jp)throws Throwable{
        log.info("调用" + jp.getTarget() + "的"+ jp.getSignature().getName() + "方法。方法入参：" + Arrays.toString(jp.getArgs()));
        try {
            Object result = jp.proceed();  //执行目标方法并获得其返回值
            log.info("调用" + jp.getTarget() + "的" + jp.getSignature().getName() + "方法。方法返回值:" + result);
            return result;
        }catch (Throwable e){
            log.error(jp.getSignature().getName() + "方法发生异常：" + e);
            throw e;
        }finally {
            log.info(jp.getSignature().getName() + "方法结束执行。");
        }
    }
}
